My speakers are good enough to tell the difference between amps and pre-amps, and especially between a hundred dollar Blu Ray and a very good, be it modest CD player.
My upper scale Audire amps and preamps are far from state of the art by today's standard, but they have no trouble out shining my old NAD, Bryston, Sumo, and Phase Linear amps.
Still, I coud get used to the BluRay if I had to, and I would enjoy it immensely, as I pined for my old one.